U n i w e r s y t e t E k o n o m i c z n y w e W r o c ł a w i u
Wydział Inżynieryjno-Ekonomiczny
Katedra Technologii Chemicznej
Pr a c a Do k t o r s k a
Badania nad usuwaniem siarczków z roztworów wodnych
z wykorzystaniem polimerów hybrydowych zawierających tlenki metali
otrzymywanych na bazie wymieniaczy jonowych
Łukasz Jacek Wilk
Pr o m o t o r:
D rhab. inż. Elżbieta Kociołek-Balawejder
Załącznik 2. Streszczenie pracy w języku angielskim (max 200 słów)
Hybrid ion exchangers (HIX) containing iron(III), copper(II) or manganese(lV) oxides based on macroporous and gel-type ion exchangers (anion and cation exchangers) as supporting materials were obtained. Obtained products were characterized using scanning microscope equipped with an EDS analyzer (SEM/EDS), Fourier-transform infrared spectroscopy (FTIR), and X-ray powder diffraction (XRD). Their porous characteristics were determined form the adsorption isotherms for liquid nitrogen at 77 K, and mercury porosimetry. Afterwards HIX were tested for removal o f sulfides (H2S(aq), HS', S2') from aqueous Solutions. Adsorption experiments were carried out in the batch regime, in nitrogen atmosphere, by mixing 0,3 g o f hybrid polymers with 100 cm3 Na2S-9H20 in deoxygenated distilled water with 50-500 mg S2" /dm3 concentration. Total sulfur content adsorbed on the HIX surface was determined by Eschka method. Concentrations o f sulfide oxidation products present in the solution were measured by high performance liquid chromatography (HPLC) method with conductometric detection. After identification and quantification o f the products mechanisms o f sulfides removal by different metal oxides present in different supporting materials were proposed. Regeneration experiments for HIX containing iron(lll) oxides were carried out. The best hybrid polymers for sulfides removal from water were chosen for further studies.
